Global aspects of covariant quantization of gauge theories

Journal Article · Wed Nov 15 04:00:00 EST 1989 · Annals of Physics (New York); (USA)

DOI:https://doi.org/10.1016/0003-4916(89)90051-1· OSTI ID:7102888

Asorey, M ^[1]; Falceto, F ^[2]

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1. Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138 (USA)
2. Departamento de Fisica Teorica, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, (Spain)

A global analysis of the covariant formulation of gauge theories shows that nonperturbative effects give rise to anomalous contributions to the Slavnov--Taylor identities. However, a global geometrical interpretation of BRST symmetry can be formulated and its relation with Slavnov--Taylor identities is clarified by means of this interpretation. In particular, we show that the existence of those non-perturbative anomalies in the Slavnov--Taylor identities does not imply a breaking of BRST symmetry. This opens the possibility of a BRST approach to the Osterwalder--Schrader construction of the physical states of the theory in covariant formalism. {copyright} 1989 Academic Press, Inc.

• OSTI ID: 7102888
• Journal Information: Annals of Physics (New York); (USA), Journal Name: Annals of Physics (New York); (USA) Vol. 196:1; ISSN APNYA; ISSN 0003-4916
• Country of Publication: United States
• Language: English

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